How to delete an app on iphone 4?(read)?

I was organizing my apps out and putting them in folders and when I dragged one app, Quizlet, it disappeared. I went on the app store and typed it in and it's still installed but there's no widget for it. I have to go to the "Search iPhone" thing and type in quizlet to open it. How can I delete it so i can redownload it for the widget?
And yes I have ios7

Is there a free way to unlock an Iphone 5?

I have a sprint IPhone 5c, I was told that it was unlocked and I would be able to put my T-Mobile sim in it and use it but it turns out that I can't. Is there a way I can unlocked it for free?

Keep Seeing The Number 21 Everywhere?

Everywhere I go I see the number 21. It's really starting to freak me out honestly. I've been seeing this number so many times everyday for the past year. The thing is, I don't even really think about it but it still shows up! If I look at numbers like the time, chances are I'm gonna see like 6:21 PM like the most recent time today. I see it on clocks, billboards, iPhone battery percent, video games, in the movies, (Example: in the movie "Click" when Adam Sandlers dad dies, his grave says 1971-2021) this list go on and on… My high score in Flappy Bird was even 21 for a few weeks! Also just recently I got into Blackjack at the Casino which is a game were you have to try getting closer to 21 than The dealer without going over. I see it so much guys, I'm not joking I must be going crazy lol. Do you have a explanation?

How to get iphone 5s out of recovery mode?

So my partners iphone 5s is stuck in recovery mode. After continually trying to fix the problem the same error message appears, 'The iphone 'iphone' could not be restored. An unknown error occurred (3).

This has been the result from not receiving a signal for over 12hours and apple has instructed me to reset the phone. So I have created a even bigger problem. Any tips on how overcome this would be greatly appreciated.

What is the best video editing app on the App Store (iOS)?

One thing I like about iMovie is the ability to slow down the speed and sound of videos and especially the sound effects. I tried to save a video on iMovie in portrait view but it turned out stupid in my Camera Roll. Right now I'm stuck with making videos with my iPhone and iMovie isn't all that. I need an app with what I said I like about iMovie^^ and more options such as text animations and filtering videos. Any app out there?

How to reach the bottom of a vent?

My husband had the dash apart of our S10 truck putting a radio in, the center vents were uncovered, he was using his phone as a light… And dropped it in there. He can't reach it with the dash off. It's an Iphone. Is there another way he can reach it?